AMD Catalyst 12.11 Beta6 resolves the issue with engine and memory clocks running too high when the GPU is idle. Clocks will now run at the proper level when the GPU is idle. This issue was only observed with specific displays and was observed in the AMD Catalyst 12.11Beta 4 and AMD Catalyst 12.10 drivers.

FEATURE HIGHLIGHTS OF THE AMD CATALYST 12.11 BETA DRIVER:

This driver introduces significant performance improvements for many games across ALL 28nm AMD Radeon™ HD 7000 Series products: HD 7700, HD7800 and HD7900.